Add a GitHub action runner template

[Sman1st]

It would be great to add a GitHub action runner template in dokploy template, i tried to run it with a raw docker compose file and it worked.

If it already enabled but with another way, please give me the instructions on how to deploy a self-hosted GitHub action runner

Below is the docker compose file

version: '3.8'

services:
  github-runner:
    image: myoung34/github-runner:latest
    environment:
      REPO_URL: "https://github.com/username/repo"
      RUNNER_NAME: "dokploy-runner"
      RUNNER_TOKEN: "${GITHUB_RUNNER_TOKEN}"
      RUNNER_WORKDIR: "/tmp/github-runner"
      RUNNER_SCOPE: "repo"
      LABELS: "dokploy,self-hosted"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - runner-work:/tmp/github-runner
    
    privileged: true
    
    restart: always
volumes:
  runner-work:
    driver: local